YesterdayI talked about the end of MyOpenID and the migration toward Facebook Connect and similar federated identification systems. In this post Tim Bray looks at Mozilla's approach to the problem, which is essentially a type of browser-based authentication. The Mozilla system is called Persona, and Bray compares it with currently extant OAuth-2-based OpenID Connect protocol, or “OIDC” for short. It's a pretty technical post and if you're not implementing these specifications you might not get a lot out of it. But the main point here is that authentication is a moving target - sure, we're all signing on with Facebook Connect now, but that's likely to change.